Cover with venting hole

Abstract

 The present invention refers to a cover (10) for a glass (1) containing a gasified beverage with means to avoid leakages; the mentioned cover (1) is semi-spherical and is equipped with a central inner trunk-conic wall (14) extending from an upper plane surface (13) of the cover, the trunk-conic wall presenting a bottom surface (15) at an intermediate level inside the cover and being provided with a hole (16) of an adequate diameter to allow a low speed output of gases from the beverage providing insufficient drag force to lift and drag drops of beverage.

Description

[0001] The present invention refers to a cover, pertaining to the field of packagings, particularly glasses for gasified beverages and that received disposition to avoid leaks.

[0002] A plastic packaging is already known for gasified beverages, like, for example, soft drink, composed, substantially: by glass that receives the beverage; and by cover that is fixed on the mouth of the glass for interference. In an application, this type of packaging is used in luncheonettes, restaurants, home meal delivery service (delivery) and others, where the glass receives the beverage, is closed with the cover and the assembly transported up to the place of consumption.

[0003] Despite that this packaging is useful for its purpose, an inconvenience can be attributed to it, which is the fact that the cover is flat and with the normal expansion of gases from gasified beverages and the lack of a medium of relief, opening of the interstice between the cover and the glass occurs and consequently the leakage.

[0004] To solve this, it is object of another patent application of the same applicant a cover formed: by a substantially semi-spherical cover body provided, on the lower border, of a coupling flap and fixation through interference on the mouth of the glass and, on the upper border, it has a plane flattening equipped with small central groove, at the bottom of which is provided a hole for introduction of straw; the mentioned cover is composed further by a glued self-adhesive label so that it may be unfastened over the hole and equipped with micro-openings with the function of relief valve.

[0005] In spite of the good results obtained with the solution above, studies have had continuity with views of improving it.

[0006] The disposition object of the present patent application refers to the result of one of these studies. Therefore, in the present solution, the cover is composed, essentially, by substantially semi-spherical cover body provided with lower coupling flap and fixation by interference on the mouth of the glass; the mentioned cover body is provided even with upper plane flattening from which it is extended inwards a section of trunk-conic wall, whose smaller base is disposed at intermediate level inside the cover and is provided with passing hole with selected diameter for exhaust of gases from the beverage at low speed.

[0007] Thus, during the transport, the soft drink hits on the section of trunk-conic wall, the gas released from it is expanded in the semi-spherical body of the cover and drains outwards through the hole, which collaborates to avoid opening of interstices between the glass and cover and consequently leakages in these places. Furthermore, the gas escapes through the hole at the bottom of the trunk-conic wall at a low speed, adequate for generating insufficient drag force to lift drops of the beverage and to cross them over through the hole, avoiding leakages.

[0008] This cover configuration, therefore, solves the problem of leakages observed in conventional plane covers.

[0009] On the other hand, the present cover consists of an improvement in relation to the cover object of another patent application of the same applicant, alluded above, properly eliminating the use of the self-adhesive relief valve.

[0010] The present cover, besides the advantages above, presents construction, manufacturing and cost that makes it interesting to innumerous applications.

[0011] The attached designs refer to the disposition introduced in cover for packaging glass, object of the present patent, in which:

Fig. 1 shows it separately, in perspective and from the external side; and

Fig. 2 shows it laterally, with partial cross section and the indication of how it is applied in a packaging glass.

[0012] In conformity with regard to what the figures listed above illustrate, the cover, object of the present utility model patent, is intended to compose a packaging, composed, essentially: by glass 1 (fig. 2), which receives a gasified beverage; by cover 10, which closes the mouth of the glass1, this and the cover 10 are provided with ferrule 2 and flap 11, respectively, which provide the fixation to each other through interference for the transport of the assembly; the mentioned flap 11 has adequate profile to define at least a sealing surface by interference against the inner surface of the glass 1, to collaborate in the sense of avoiding leakage through the ferrule 2.

[0013] In the present disposition, the cover 10 is substantially semi-spherical forming expansion chamber 12 of the gases released by the gasified beverage, equipped with upper plane surface 13 and of section of central inner trunk-conic wall 14, extended from the mentioned upper plane surface 13 and whose bottom 15 is at intermediate level inside the cover and is provided with passing gas exhaust hole 16 equipped with adequate diameter for output of the gases from the beverage at low speed, to provide insufficient drag force to lift and drag drops of the beverage.

[0014] The cover is obtained preferably from thermoformed plastic (Polypropylene, Polystyrene, PET, PVC, etc.).

[0015] Thus, after the glass 1 is filled with the gasified beverage 50 (fig. 2), the cover 10 is applied on its mouth, such that the ferrule 2 of the glass 1 and the flap 11 of the cover 10 are fixed and seal each other by interference, in a manner known in the art.

[0016] Under these conditions, the glass 1 defines a packaging medium for the gasified beverage 50; the cover 10 an expansion chamber for the gas 51 released by the beverage, which drains, through the hole 16, at a low speed, adequate to avoid lifting and dragging drops of the beverage. This condition, therefore, is adequate for transporting the assembly between the place of filling of the glass and a table in a luncheonette or bar or alike or between these commercial establishments and the residence of a consumer, in the case of ready food delivery services (delivery), without the risk of leakages.

[0017] Within the basic construction, described above, the cover, object of the present patent, can present modifications relative to materials, dimensions, constructive and/or functional and/or ornamental configuration details, without eschewing from the scope of the requested protection.

Claims

1. Disposition introduced in packaging glass cover intended for the packing and transport of gasified beverage; the mentioned substantially semi-spherical cover (10) forming expansion chamber (12) of the gases released by the beverage, equipped with lower flap (11) for fixation and sealing by interference in ferrule (2) of the glass (1) and of upper plane surface (13), characterized by section of central inner trunk-conic wall (14), extended from the upper plane surface (13) and whose bottom is at intermediate level inside the cover and is provided with gas exhaust hole (16) equipped with adequate diameter for output of gases from the beverage at low speed, adequate to provide insufficient drag force to lift and drag drops of the beverage.

Drawing